I had considered using a separate Doxygen run to generate the SVN++
documentation, but I think this way is actually better, because it
allows cross-referencing from SVN++ docs to the C-API docs.

-- Brane

P.S.: I don't consider the C++ API as "bindings" and I think we should
move it from subversion/bindings/cxx to subversion/svnxx, and its public
include files to subverison/include/svnxx, but that's a topic for a
different thread.